CN219324859U - Special-shaped joint clamping block and special-shaped full-position automatic argon arc tube welding clamp - Google Patents
Special-shaped joint clamping block and special-shaped full-position automatic argon arc tube welding clamp Download PDFInfo
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- CN219324859U CN219324859U CN202223395377.0U CN202223395377U CN219324859U CN 219324859 U CN219324859 U CN 219324859U CN 202223395377 U CN202223395377 U CN 202223395377U CN 219324859 U CN219324859 U CN 219324859U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model provides a special connector clamping block and a special full-position automatic argon arc tube welding clamp, which comprises the following components: a step-shaped body, a clearance groove and a line cutting groove; the ladder-shaped body is formed by connecting a plurality of semicircular rings with different diameters in a concentric mode according to a sequence from small to large, the side where the largest semicircular ring of the ladder-shaped body is located is provided with the clearance groove, and the ladder-shaped body is provided with a plurality of line cutting grooves. The device avoids the situation that the pipe part of the special connector is not connected to a normal guide pipe due to overlong distance from the clamping block to the tungsten electrode by adopting a mode that the special connector is kept away from the special connector by the clearance groove on the clamping block of the special connector, and solves the problem that the special connector is difficult to weld by full-position automatic argon arc pipe welding.
Description
Technical Field
The utility model relates to the field of automatic argon arc tube welding, in particular to a special-shaped joint clamping block and a special-shaped full-position automatic argon arc tube welding clamp.
Background
Argon arc welding, which is a welding technique using argon as a shielding gas, is also called argon gas shielded welding. The argon arc welding is divided into manual argon arc welding and automatic argon arc welding, and the manual argon arc welding forming quality cannot be compared with that of the automatic argon arc welding, so that under the condition of high welding quality requirement, the automatic argon arc welding is generally adopted.
The welding requirements of a large number of guide pipes and guide pipes or guide pipes and special-shaped joints exist in the navigation attitude and orbit control power system, and the guide pipe type parts are special in shape and size and cannot be matched with common automatic argon arc welding or high-energy beam welding, so that the welding is mainly carried out by adopting full-position automatic argon arc welding tongs at present. The pipe clamp block of the pipe welding clamp is two equal-thickness semicircular rings, and when the pipe clamp is installed in the welding clamp, the distance between the outer surface and the tungsten electrode is large, so that the welding seam can not be aligned with the tungsten electrode when the special-shaped joint is clamped, and the welding of the pipe and the special-shaped joint can only adopt a manual argon arc welding method. The manual argon arc welding forming quality cannot be compared with that of automatic argon arc welding, so that a special full-position automatic argon arc tube welding clamp needs to be provided, and the problem that the outer surface of a clamping block is too far away from a tungsten electrode is solved.
Patent document CN107552925a discloses a method for processing a fuel manifold of an aircraft engine with an integrated oil separation pipe, firstly, the oil separation pipe and a three-way joint are clamped by an automatic argon arc welding clamp, a tungsten electrode of automatic argon arc welding is aligned with a welding line, automatic welding is carried out, seamless welding of the oil separation pipe and the three-way joint is completed, the problem of interference between the automatic argon arc welding clamp and a main fuel pipe and the oil separation pipe is solved, and then the welded oil separation pipe and main fuel pipe are welded into a whole by an automatic welding method, so that the processing of the fuel manifold is completed. The problem that dynamic argon arc welding is difficult to weld on an aeroengine fuel manifold is solved by improving the processing mode, but the processing mode is complex in operation and extremely wastes time.
Patent document CN110293282a relates to an automatic argon arc ring welding method for pipelines suitable for butt joint structures. And (3) sleeving independent welding rings on the two equal-diameter butt joint pipelines, marking welding wires corresponding to the butt joint positions of the pipelines on the welding rings, rotating the butt joint pipelines, welding the welding rings along the welding wires, and realizing the welding of the butt joint pipelines. The patent is only suitable for automatic argon arc hammer of the guide pipe to the guide pipe, and is difficult to solve the automatic argon arc hammer problem of the special connector.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a special-shaped joint clamping block and a special-shaped full-position automatic argon arc tube welding clamp.
According to the present utility model, there is provided a special-shaped joint clamp block comprising: a step-shaped body, a clearance groove and a line cutting groove;
the ladder-shaped body is formed by connecting a plurality of semicircular rings with different diameters in a concentric mode according to a sequence from small to large, the side where the largest semicircular ring of the ladder-shaped body is located is provided with the clearance groove, and the ladder-shaped body is provided with a plurality of line cutting grooves.
Preferably, the stepped body comprises: an outer ring step, a middle ring step and an inner ring step;
the two sides of the middle ring step are respectively connected with the inner ring step and the outer ring step, the middle ring step and the inner ring step are all semicircular;
the diameter of the outer ring step is larger than that of the middle ring step, and the diameter of the middle ring step is larger than that of the inner ring step;
the outer ring ladder is opposite to one side of the middle ring ladder and is provided with the avoidance groove.
Preferably, the wire cutting groove is perpendicular to the end face of the stepped body and penetrates through the stepped body;
the linear cutting groove is arranged in a circular arc shape and concentric with the semicircular ring.
Preferably, the corresponding central angle of the linear cutting groove is larger than 90 degrees.
Preferably, the special-shaped joint clamping block is adopted by a special-shaped full-position automatic argon arc tube welding clamp.
Preferably, it comprises: the welding clamp comprises a first welding clamp, a second welding clamp, a conduit clamping block, a tungsten electrode and a special-shaped joint clamping block;
the first welding tongs are provided with the conduit clamping blocks, the second welding tongs are provided with the special-shaped connector clamping blocks, the first welding tongs clamp the conduit through the conduit clamping blocks, and the second welding tongs clamp the special-shaped connector through the special-shaped connector clamping blocks;
and the tungsten electrode is arranged between the first welding tongs and the second welding tongs.
Preferably, the first welding tongs and the second welding tongs are provided with two tong arms, each tong arm of the first welding tongs is provided with one conduit clamping block, and each tong arm of the second welding tongs is provided with one special-shaped joint clamping block;
two pipe clamp blocks surround the circumference of the pipe, and two special-shaped joint clamp blocks surround the circumference of the special-shaped joint.
Preferably, the shaped joint comprises a tube portion and a shaped protrusion portion, the tube portion connecting the shaped protrusion portion;
the special-shaped joint clamping block keeps away the special-shaped protruding part through the clearance groove, and the inner ring of the special-shaped joint clamping block is matched with the pipe part.
Preferably, a clamping block mounting groove is formed in the second welding tongs, an outer ring step of the special-shaped joint clamping block is mounted in the clamping block mounting groove, and the outer diameter and the width of the outer ring step are the same as the width of the inner diameter of the clamping block mounting groove;
the inner diameter of the special-shaped joint clamping block is the same as the diameter of the pipe part;
the width of the middle ring step is the same as that of the outer ring step;
the outer diameter of the middle ring step is larger than that of the special-shaped protruding part.
Preferably, the pipe part is coaxially attached to the guide pipe, and the tungsten electrode is aligned with a welding line between the pipe part and the guide pipe;
the inner ring of the special-shaped joint clamping block is directed towards the tungsten electrode in a step mode.
Preferably, the conduit clamping block and the special-shaped joint clamping block are made of titanium alloy materials and are attached with high-temperature resistant coatings.
Compared with the prior art, the utility model has the following beneficial effects:
1. the device avoids the situation that the pipe part of the special connector is not connected to a normal guide pipe due to overlong distance from the clamping block to the tungsten electrode by adopting a mode that the special connector is kept away from the special connector by the clearance groove on the clamping block of the special connector, and solves the problem that the special connector is difficult to weld by full-position automatic argon arc pipe welding.
2. The device improves the structural strength of the clamping block of the special connector through the stepped structure, and avoids the condition that the structural strength of the clamping block is insufficient due to the fact that the clearance groove is machined.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view of a special full-position automatic argon arc tube welding clamp in use state;
FIG. 2 is a cross-sectional view of a contoured joint clamp block;
FIG. 3 is an end view of a contoured joint clamp block;
the figure shows:
Detailed Description
The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.
Example 1
As shown in fig. 1, the present embodiment includes: the welding clamp comprises a first welding clamp, a second welding clamp, a conduit clamping block 2, a tungsten electrode 3 and a special-shaped joint clamping block 4; the first welding tongs are provided with a conduit clamping block 2, the second welding tongs are provided with a special-shaped joint clamping block 4, the first welding tongs clamp the conduit 1 through the conduit clamping block 2, the second welding tongs clamp the special-shaped joint 5 through the special-shaped joint clamping block 4, and a tungsten electrode 3 is arranged between the first welding tongs and the second welding tongs. The first welding tongs and the second welding tongs are provided with two tong arms, each tong arm of the first welding tongs is provided with a conduit clamping block 2, each tong arm of the second welding tongs is provided with a special-shaped joint clamping block 4, the two conduit clamping blocks 2 surround the periphery of the conduit 1, and the two special-shaped joint clamping blocks 4 surround the periphery of the special-shaped joint 5. The special connector 5 comprises a pipe part and a special protruding part 51, the pipe part is connected with the special protruding part 51, the special connector clamping block 4 keeps away the special protruding part 51 through the avoiding groove 41, and the inner ring of the special connector clamping block 4 is matched with the pipe part. The tube part is attached to the guide tube 1 coaxially, and the tungsten electrode 3 is aligned with the welding seam between the tube part and the guide tube 1.
As shown in fig. 2 and 3, the special-shaped joint clamp block 4 includes: a step-like body, a clearance groove 41, and a wire cutting groove 45; the stepped body is formed by connecting a plurality of semicircular rings with different diameters from small to large in order and concentric, a clearance groove 41 is formed in one side of the largest semicircular ring of the stepped body, and a plurality of linear cutting grooves 45 are formed in the stepped body. The step-like body includes: an outer ring step 42, a middle ring step 43, and an inner ring step 44; the inner ring step 44 and the outer ring step 42 are respectively connected to the two sides of the middle ring step 43, the outer ring step 42, the middle ring step 43 and the inner ring step 44 are all semicircular, the diameter of the outer ring step 42 is larger than that of the middle ring step 43, the diameter of the middle ring step 43 is larger than that of the inner ring step 44, and the side, opposite to the middle ring step 43, of the outer ring step 42 is provided with the clearance groove 41. The inner ring ladder 44 of the special connector clamping block 4 faces the tungsten electrode 3, the linear cutting groove 45 is perpendicular to the end face of the ladder-shaped body and penetrates through the ladder-shaped body, the linear cutting groove 45 is arranged in a circular arc shape and concentric with the semicircular ring, and the corresponding central angle of the linear cutting groove 45 is larger than 90 degrees.
The second welding tongs are provided with clamping block mounting grooves, outer ring steps 42 of the special-shaped joint clamping blocks 4 are mounted in the clamping block mounting grooves, the outer diameter and the width of the outer ring steps 42 are the same as the inner diameter of the clamping block mounting grooves, the inner diameter of the special-shaped joint clamping blocks 4 is the same as the diameter of the pipe part, the width of middle ring steps 43 is the same as the width of the outer ring steps 42, and the outer diameter of the middle ring steps 43 is larger than the outer diameter of the special-shaped protruding parts 51.
Example 2
Example 2 is a preferred example of example 1.
As shown in fig. 1 to 3, the material used for the special-shaped joint clamping block 4 is high-temperature titanium alloy, and a high-temperature resistant coating is attached to the surface of the special-shaped joint clamping block by a sputtering method, so that adverse effects of welding heat on the shape and position dimensions of the special-shaped joint clamping block 4 in long-time frequent use are reduced, and the service time of the special-shaped joint clamping block 4 can be ensured to be several times that of a conventional clamping block. The end face of the special-shaped joint clamping block 4 is semicircular, the outer diameter of the special-shaped joint clamping block 4 is 33.1-33.2mm as the inner diameter of a clamping block mounting groove of the matched welding tongs, the inner diameter of the special-shaped joint clamping block 4 is 8.0-8.1mm as the outer diameter of a pipe part of the clamped special-shaped joint 5.
The side of the special connector clamping block 4 is in a three-level staggered step shape, wherein the width of an outer ring step 42 is 5.9-6.0mm as the width of a clamping block mounting groove, the width of a middle ring step 43 is as same as that of the outer ring step 42, but the position of the middle ring step 43 along the width direction is offset to the left side relative to the outer ring step 42, an inner ring step 44 is connected with one side of the middle ring step 43, which is opposite to the outer ring step 42, the outer diameter of the middle ring step 43 is slightly larger than the outer diameter of the special connector 5, and when the special protruding part 51 is tightly attached to the avoidance groove 41, the tail end of the pipe part is aligned with the welding seam of the guide pipe 1 to the tungsten electrode 3.
The middle positions of the outer ring ladder 42, the middle ring ladder 43 and the inner ring ladder 44 are provided with linear cutting grooves 45 which vertically penetrate through the end surfaces of the special-shaped joint clamping blocks 4 and are used for guaranteeing a certain degree of flexible deformation in clamping. The circle centers of the outer ring step 42, the middle ring step 43 and the inner ring step 44 are coincident with the circle center of the inner diameter circle of the special joint clamping block 4, the circle center angle of the linear cutting groove 45 is larger than a right angle, and the width of the linear cutting groove 45 is 0.04mm.
The outer surface of the pipe clamping block 2 of the full-position automatic argon arc pipe welding tongs is 17mm away from the inner tungsten electrode 3, the welded pipe 1 is a phi 8 x 1mm specification stainless steel pipe 1 with a straight line length of 30mm, the welded special joint 5 is a phi 8 x 1mm specification stainless steel ball head with a straight line length of 14mm, so that the length of the pipe part of the special joint 5 is not up to 17mm, the pipe part of the special joint 5 is difficult to contact the pipe 1, and only the special joint 5 is kept away, and the special joint 5 is moved towards one side of the pipe 1 for 3mm, so that welding can be performed.
The installation method of the embodiment comprises the following steps: firstly, two special-shaped connector clamping blocks 4 are respectively placed into an upper clamping block mounting groove and a lower clamping block mounting groove on the right side of the welding tongs, and when the welding tongs are placed, the step surfaces are ensured to face the tungsten electrode 3 inside the welding tongs. The special-shaped joint clamp block 4 is fixed on the clamp block mounting groove of the welding tongs by screwing a bolt into the central hole of the clamp block. The upper and lower clamping block mounting grooves on the left side of the welding tongs are internally provided with the conduit clamping blocks 2 and screwed into the bolts for fixation. Then, the guide pipe 1 is placed in the left guide pipe clamp block 2, the end face is aligned with the tip of the tungsten electrode 3 in the welding tongs, and then the two semicircular guide pipe clamp blocks 2 are folded and the buckle of the clamp block mounting groove is fixed. The special-shaped protruding part 51 is placed in the clearance groove 41 of the right special-shaped joint clamping block 4, the end face of the pipe part of the special-shaped joint 5 is tightly attached to the end face of the guide pipe 1, and then the two special-shaped joint clamping blocks 4 are folded and the buckle of the clamping block mounting groove is fixed. And starting a switch of the welding machine, filling argon into the welding tongs, electrifying and arcing the tungsten electrode 3, and automatically encircling the welding seam by the tungsten electrode 3 for a plurality of circles to finish welding, thereby realizing full-position automatic argon arc tube welding.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.
The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (10)
1. A contoured joint clamp block, comprising: a step-shaped body, a clearance groove (41) and a wire cutting groove (45);
the ladder-shaped body is formed by connecting a plurality of semicircular rings with different diameters in a concentric mode according to a sequence from small to large, the side, where the largest semicircular ring of the ladder-shaped body is located, is provided with the avoidance groove (41), and the ladder-shaped body is provided with a plurality of line cutting grooves (45).
2. The contoured joint clamp block of claim 1, wherein said stepped body comprises: an outer ring step (42), a middle ring step (43), and an inner ring step (44);
the two sides of the middle ring step (43) are respectively connected with the inner ring step (44) and the outer ring step (42), the middle ring step (43) and the inner ring step (44) are all semicircular;
the outer ring step (42) has a larger diameter than the middle ring step (43), and the middle ring step (43) has a larger diameter than the inner ring step (44);
the outer ring step (42) is provided with the clearance groove (41) at one side opposite to the middle ring step (43).
3. The contoured joint clamp block of claim 1, wherein: the wire cutting groove (45) is perpendicular to the end face of the stepped body and penetrates through the stepped body;
the line cutting groove (45) is arranged in a circular arc shape and concentric with the semicircular ring.
4. A contoured joint clamp block according to claim 3, wherein: the corresponding central angle of the line cutting groove (45) is larger than 90 degrees.
5. A special full-position automatic argon arc tube welding clamp is characterized in that: the special full-position automatic argon arc tube welding clamp adopts the special joint clamping block as claimed in claim 2.
6. The contoured full position automatic argon arc tube welding jig of claim 5, comprising: the welding clamp comprises a first welding clamp, a second welding clamp, a conduit clamping block (2), a tungsten electrode (3) and a special-shaped joint clamping block (4);
the first welding tongs are provided with the conduit clamping blocks (2), the second welding tongs are provided with the special-shaped connector clamping blocks (4), the first welding tongs clamp the conduit (1) through the conduit clamping blocks (2), and the second welding tongs clamp the special-shaped connector (5) through the special-shaped connector clamping blocks (4);
and the tungsten electrode (3) is arranged between the first welding tongs and the second welding tongs.
7. The contoured full position automatic argon arc tube welding clamp of claim 6, wherein: the first welding tongs and the second welding tongs are respectively provided with two tong arms, each tong arm of the first welding tongs is provided with one conduit clamping block (2), and each tong arm of the second welding tongs is provided with one special-shaped joint clamping block (4);
two pipe clamp blocks (2) are surrounded on the periphery of the pipe (1), and two special-shaped joint clamp blocks (4) are surrounded on the periphery of the special-shaped joint (5).
8. The contoured full position automatic argon arc tube welding clamp of claim 6, wherein: the special-shaped joint (5) comprises a pipe part and a special-shaped protruding part (51), wherein the pipe part is connected with the special-shaped protruding part (51);
the special-shaped joint clamping block (4) keeps away the special-shaped protruding portion (51) through the position keeping away groove (41), and the inner ring of the special-shaped joint clamping block (4) is matched with the pipe portion.
9. The contoured full position automatic argon arc tube welding clamp of claim 8, wherein: the second welding tongs are provided with clamping block mounting grooves, outer ring steps (42) of the special-shaped joint clamping blocks (4) are mounted in the clamping block mounting grooves, and the outer diameter and the width of the outer ring steps (42) are the same as the width of the inner diameter of the clamping block mounting grooves;
the inner diameter of the special-shaped joint clamping block (4) is the same as the diameter of the pipe part;
the width of the middle ring step (43) is the same as that of the outer ring step (42);
the outer diameter of the middle ring step (43) is larger than that of the special-shaped protruding part (51).
10. The contoured full position automatic argon arc tube welding clamp of claim 8, wherein: the tube part is attached to the guide tube (1) coaxially, and the tungsten electrode (3) is aligned with a welding line between the tube part and the guide tube (1);
the inner ring step (44) of the special-shaped joint clamping block (4) faces the tungsten electrode (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223395377.0U CN219324859U (en) | 2022-12-14 | 2022-12-14 | Special-shaped joint clamping block and special-shaped full-position automatic argon arc tube welding clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223395377.0U CN219324859U (en) | 2022-12-14 | 2022-12-14 | Special-shaped joint clamping block and special-shaped full-position automatic argon arc tube welding clamp |
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| Publication Number | Publication Date |
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| CN219324859U true CN219324859U (en) | 2023-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223395377.0U Active CN219324859U (en) | 2022-12-14 | 2022-12-14 | Special-shaped joint clamping block and special-shaped full-position automatic argon arc tube welding clamp |
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| CN (1) | CN219324859U (en) |
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- 2022-12-14 CN CN202223395377.0U patent/CN219324859U/en active Active
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